使用cocoapi遇到的坑及爬坑记录

近期在做基于coco数据集的实验，这两天又幸运地薅到了实验室一台服务器，搬运一波代码配好环境之后发现在服务器上使用coco自带的api做evaluation的时候报错了，卡了好久才把问题都解决。以下是遇到的两个问题以及爬坑的记录。

问题一：模型评估阶段，数据类型不匹配

错误信息
TypeError: object of type <class ‘numpy.float64’> cannot be safely interpreted as an integer

原因
问题出在 cocoapi 库的 cocoval.py 中的 Params类，代码如下：

class Params:
    '''
    Params for coco evaluation api
    '''
    def setDetParams(self):
        self.imgIds = []
        self.catIds = []
        # np.arange causes trouble.  the data point on arange is slightly larger than the true value
        self.iouThrs = np.linspace(.5, 0.95, int(np.round((0.95 - .5) / .05)) + 1, endpoint=True)
        self.recThrs = np.linspace(.0, 1.00, int(np.round((1.00 - .0) / .01)) + 1, endpoint=True)
        self.maxDets = [1, 10, 100]
        self.areaRng = [[0 ** 2, 1e5 ** 2], [0 ** 2, 32 ** 2], [32 ** 2, 96 ** 2], [96 ** 2, 1e5 ** 2]]
        self.areaRngLbl = ['all', 'small', 'medium', 'large']
        self.useCats = 1

    def setKpParams(self):
        self.imgIds = []
        self.catIds = []
        # np.arange causes trouble.  the data point on arange is slightly larger than the true value
        self.iouThrs = np.linspace(.5, 0.95, int(np.round((0.95 - .5) / .05)) + 1, endpoint=True)
        self.recThrs = np.linspace(.0, 1.00, int(np.round((1.00 - .0) / .01)) + 1, endpoint=True)
        self.maxDets = [20]
        self.areaRng = [[0 ** 2, 1e5 ** 2],